期刊
ATMOSPHERE
卷 11, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/atmos11101133
关键词
regional weather conditions; forest fires; Central and Eastern Siberia; COSMO-ART; modeling experiments
资金
- Russian Science Foundation [16-17-10275]
- Federal Service for Hydrometeorology and Environmental Monitoring [AAAA-A20-120021490079-3]
- Lomonosov Moscow State University [AAAA-A16-116032810086-4]
Effects of forest fires on regional weather conditions were analyzed for Central and Eastern Siberia after warm and dry weather conditions in summer 2019 using COSMO-Ru (COnsortium for Small-scale MOdeling; Ru-Russia) and COSMO-RuART (ART-Aerosols and Reactive Trace gases) model systems. Four series of numerical experiments were conducted (one control experiment and three forest fire experiments assuming total vegetation destruction within the burned areas) to evaluate possible effects of forest fires on surface albedo and vegetation properties as well as their influence on air chemistry and aerosol concentration in the atmosphere. The modeling results showed significant influence of forest fires on regional weather conditions that occurred over large areas situated even away from burnt regions. Decreased surface albedo and reduced latent heat fluxes due to fire-induced destruction of forest cover lead to higher near-surface air temperature and lower air humidity in both burned and surrounding unburned forest areas. On the other hand, reduced incoming solar radiation due to smoke from forest fire plumes decreased land surface temperatures and increased thermal atmospheric stability resulting in reduced regional precipitation.
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